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Old 10-06-2007, 07:48 PM   #1
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Can double glazed windows be repaired?


I have 30 year old wood framed casement windows which have fogged between the double glazing. Frames and hardware are in good shape, so I would like to remove the glass, clean them and re-seal.

Is this a DIY job? If so, How do I reseal? I have remodeled many houses and built one from scratch, so I can do the work, just need to use the right materials. Did I mention that I am cheeep?

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Old 10-06-2007, 08:53 PM   #2
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Can double glazed windows be repaired?


Depends on the style and brand. I have some Anderson casements, two of which had the outside pane broken (don't ask, and I won't tell). I too thought it would be an easy replacement of the lite, but nooooooo. The whole damn insert needed to be replaced - wood frame and all. This weren't so hard for the hinged one, but the staionary lite was a real PITA.

I used the internet to look up the part number (should be etched in a corner of the glass) and found out what I needed. then went to my local builders supply (NOT Home Depot or Lowe's) and ordered the correct replacement.

Then again, some windows are an easy replacement that an intelligent and crafty HO should be able to handle.

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Old 10-08-2007, 12:31 AM   #3
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Can double glazed windows be repaired?


Look in the phone book for glass places that can order or fabricate these panels. Remove the panel you have and bring it to them. They need to make one that's the same thickness as the one there now or the trim pieces won't go back on.
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Old 10-08-2007, 07:38 AM   #4
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Can double glazed windows be repaired?


butchalline,

Your windows have seal failure meaning that moisture has gotten between the lites. You cannot take the IG (insulating glass) unit apart and clean the glass for a number of technical reasons.

As was mentioned in the previous posts, you will have to buy and install a new IGU to replace the old ones.
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Old 10-08-2007, 08:45 AM   #5
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Can double glazed windows be repaired?


I have Andersen windows, and IMHO, they are the best. They are guaranteed not to leak in 60 mph wind, but I know that they're actually made not to leak with 100+ mph wind (saw it on a Bob Vila program tour of the Andersen manufacturing plant).
Mine have been through several 100+ mph hurricane winds and a 106 mph waterspout, and haven't leaked a drop.
As for an outside pane being cracked, don't try to repair that without first contacting the area Andersen rep for an inspection. I had one like that (4" crack extending out from edge, but window had not lost its seal), and they called it a "manufacturing stress crack" and replaced it for free (frame and all).
Andersen has a 20-year warranty, while most have only 10-year warranties. I've seen them replace and repair windows just inside that 20-year expiration, so they stand fully behind it and don't quibble.
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Old 10-08-2007, 06:03 PM   #6
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Can double glazed windows be repaired?


There is a compromise in the seal of the IG unit and that's what causes the fogging. I would call a local glass shop out to give you an estimate. With windows that old sometimes the difficult task is not replacing the glass, but matching and replacing the stop on the window that holds the glass in.
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Old 01-10-2008, 10:57 AM   #7
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Can double glazed windows be repaired?


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Originally Posted by Mike Swearingen View Post
I have Andersen windows, and IMHO, they are the best. They are guaranteed not to leak in 60 mph wind, but I know that they're actually made not to leak with 100+ mph wind (saw it on a Bob Vila program tour of the Andersen manufacturing plant).
Mine have been through several 100+ mph hurricane winds and a 106 mph waterspout, and haven't leaked a drop.
As for an outside pane being cracked, don't try to repair that without first contacting the area Andersen rep for an inspection. I had one like that (4" crack extending out from edge, but window had not lost its seal), and they called it a "manufacturing stress crack" and replaced it for free (frame and all).
Andersen has a 20-year warranty, while most have only 10-year warranties. I've seen them replace and repair windows just inside that 20-year expiration, so they stand fully behind it and don't quibble.
I was wondering if you could explain a bit more about the manufacturers stress crack... I came home to the crack, and they want me to explain what "pattern" it was in, but I broke out the rest of the window from the crack thinking I could fix it myself, not realizing what it was. I told them I was going to try and find the bucket with the glass in it, and I might still have it, but i don't even know if that would help me.... My 20 yr. warranty is up at the end of this year (2008)... Any info or help would be appreciated. A guy at a local hardware store told me that the crack would be horizontal straight across....????
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Old 01-10-2008, 02:02 PM   #8
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Can double glazed windows be repaired?


I just replaced a DH sash for a customer. He said the outside pane was just broken when he woke up the next morning. The screen was not damaged at all, so it wasn't from a gardener or such. I told him to call Andersen because of the 20 year guarranty. His window was 12 years old. The glass break pattern was sort of like a road map all over the window. They sent him the sash after a few questions on the form that he downloaded from the Web site .
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Old 01-10-2008, 06:42 PM   #9
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Can double glazed windows be repaired?


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Originally Posted by btbaker View Post
I was wondering if you could explain a bit more about the manufacturers stress crack... I came home to the crack, and they want me to explain what "pattern" it was in, but I broke out the rest of the window from the crack thinking I could fix it myself, not realizing what it was. I told them I was going to try and find the bucket with the glass in it, and I might still have it, but i don't even know if that would help me.... My 20 yr. warranty is up at the end of this year (2008)... Any info or help would be appreciated. A guy at a local hardware store told me that the crack would be horizontal straight across....????
A manufacturers stress crack usually starts from inside the sash where you cannot see. A lot of Ig's can have chips, or clamshell's that you cannot see because they are hidden underneath the vinyl or wood of the sash. These IG's do make it into windows, more often then not. A service tech would have to take the sash apart, and determine if it was really a stress crack. If you are looking for something to tell the manufacturer, tell them it started in the corner of the sash, and stopped in the middle of the window. That would be an obvious stress crack.
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Old 01-17-2008, 01:49 PM   #10
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Can double glazed windows be repaired?


I am on the phone with Anderson right now and they are ordering it, right now.

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